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Finding the Fourth Proportional to 412,833.90, 619,250.85 and 255,369.90

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Solution

The fourth proportional to 412,833.90, 619,250.85 and 255,369.90 is: 383,054.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,833.90 : 619,250.85 = 255,369.90 : x
  2. Step 2: Convert to fraction form
    412,833.90/619,250.85 = 255,369.90/x
  3. Step 3: Cross multiply
    412,833.90x = 619,250.85 × 255,369.90
  4. Step 4: Simplify right side
    412,833.90x = 158,138,027,639.42
  5. Step 5: Solve for x
    x = 158,138,027,639.42/412,833.90
  6. Step 6: Final answer
    x = 383,054.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.